Coochbehar, Prana Narayana, Silver Tanka, RajSaka 160, unlisted symbol on obverse, Obverse: Sri Sri/Shiva Charana/Kamala Madhu/Karasya.Reverse: Sri Srima/d Pran Naraya/nasya Shake/160. About Uncirculated, Exceedingly Rare, Few pcs known. Prana Narayana ascended the throne of Coochbehar in 1554 Shakabda (125 RajSaka), accordingly the full tanka of Prana narayan with 1554 and 1555 shakabda are available along with the half tankas for those years. But from 140 RajSaka only Half Tankas are available till the last year of Prana Narayan that is 163 RajSaka. Only in 140, 141, 160 and 161 RajSakas full tanka are known that also very few pieces, probably these are ceremonial issues or nazrana. In this coin a new symbol has been found on the obverse side